Annual report pursuant to Section 13 and 15(d)

Stock Plans and Management Compensation (Details 2)

v3.6.0.2
Stock Plans and Management Compensation (Details 2) - Stock Options and SAR's [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Period for Stock Options and SARs to be Exercisable (in years) 10 years    
Awards Vesting Period (in years) 4 years    
Age of Grantee 62 years    
Share-Based Compensation Expense $ 0.0 $ 0.3 $ 1.3
Range 01 [Member]      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Exercise Price Range, Lower Range Limit (in dollars per share) $ 3.37    
Exercise Price Range, Upper Range Limit (in dollars per share) $ 5.99    
Number of Outstanding Options (in shares) 237    
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years) 2 years 3 months 18 days    
Outstanding Options, Weighted Average Exercise Price (in dollars per share) $ 5.24    
Number of Options Exercisable (in shares) 237    
Exercisable Options, Weighted Average Remaining Years of Contractual Life (in years) 2 years 3 months 18 days    
Exercisable Options, Weighted Average Exercise Price (in dollars per share) $ 5.24    
Range 02 [Member]      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Exercise Price Range, Lower Range Limit (in dollars per share) 6.00    
Exercise Price Range, Upper Range Limit (in dollars per share) $ 19.90    
Number of Outstanding Options (in shares) 379    
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years) 3 years 1 month 6 days    
Outstanding Options, Weighted Average Exercise Price (in dollars per share) $ 12.54    
Number of Options Exercisable (in shares) 379    
Exercisable Options, Weighted Average Remaining Years of Contractual Life (in years) 3 years 1 month 6 days    
Exercisable Options, Weighted Average Exercise Price (in dollars per share) $ 12.54    
Range 03 [Member]      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Exercise Price Range, Lower Range Limit (in dollars per share) 19.91    
Exercise Price Range, Upper Range Limit (in dollars per share) $ 39.56    
Number of Outstanding Options (in shares) 362    
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years) 4 years    
Outstanding Options, Weighted Average Exercise Price (in dollars per share) $ 22.45    
Number of Options Exercisable (in shares) 362    
Exercisable Options, Weighted Average Remaining Years of Contractual Life (in years) 4 years    
Exercisable Options, Weighted Average Exercise Price (in dollars per share) $ 22.45